5 Minute Squeeze In Constant of Proportionality Word Problems

Front

What is the constant of proportionality in the equation y = kx?

Back

The constant of proportionality is the value of k, which represents the ratio of y to x.

Front

How do you find the unit rate from a total cost and quantity?

Back

Divide the total cost by the quantity to find the unit rate.

Front

If you buy 3 pounds of apples for $9, what is the price per pound?

Back

$3 per pound.

Front

What does it mean for two quantities to be proportional?

Back

Two quantities are proportional if they have a constant ratio.

Front

What is the formula to calculate the constant of proportionality?

Back

k = y/x, where k is the constant of proportionality, y is the total amount, and x is the number of units.

Front

What is a proportional relationship?

Back

A proportional relationship is one where the ratio between two quantities remains constant.

Front

What is the unit rate of 50 miles in 2 hours?

Back

25 miles per hour.

Front

How can you tell if a graph represents a proportional relationship?

Back

If the graph is a straight line that passes through the origin.

Front

If 10 pencils cost $5, what is the cost per pencil?

Back

$0.50 per pencil.

Front

What is the constant of proportionality if 300 calories are in 5 servings?

Back

60 calories per serving.